package com.dadaguai.service;

import com.dadaguai.domain.UserMessage;
import com.baomidou.mybatisplus.extension.service.IService;

/**
* @author 王半仙
* @description 针对表【user_message(用户消息)】的数据库操作Service
* @createDate 2023-10-20 11:28:40
*/
public interface UserMessageService extends IService<UserMessage> {

    /**
     * 发送系统消息
     * @param userId 目标用户id
     */
    void sendSysMessage(String userId);
}
